Question: Let A 1 -1 2 0 1 and B - 21 1. Compute the sum 3AAT + 4B. 2. For what integer n E

Let A 1 -1 2 0 1 and B - 21 1.

Let A 1 -1 2 0 1 and B - 21 1. Compute the sum 3AAT + 4B. 2. For what integer n E Z is nAAT + 5B upper triangular? 0 AAT 3. Compute the sum AAT 0 + ATA

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